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Add a target look option for camera (Give a way to make beautiful travellings)

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Make movement of camera independant from velocity (the way of velocity is fixed when /camera is started)
This commit is contained in:
sys4-fr 2017-04-30 18:33:03 +02:00
parent 194ce63d73
commit 9aa8c2436f
1 changed files with 103 additions and 1 deletions
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104
init.lua
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@ -89,6 +89,9 @@ local camera = {
end,
}
local player_look_dir = nil
local target_look_position = nil
--local target_look_position = {x=-265, y=9.5, z=-126}
-- [event] On step
function camera:on_step(dtime)
@ -104,6 +107,81 @@ function camera:on_step(dtime)
-- if record mode
if self.mode == 0 then
-- Calculate pitch and yaw if target_look_position defined
if target_look_position then
local vec_pos = vector.subtract(target_look_position, pos)
print("vec_pos "..dump(vec_pos))
-- Pitch
local opp = vec_pos.y
local adj = vec_pos.x
if math.abs(vec_pos.z) > math.abs(vec_pos.x) then
adj = vec_pos.z
end
if adj ~= 0 then
if adj > 0 then opp = opp * -1 end
self.driver:set_look_pitch(opp/adj)
end
-- Yaw
opp = vec_pos.x
adj = vec_pos.z
local yaw = opp/adj
if math.abs(vec_pos.x) > math.abs(vec_pos.z) then
print("INVINVINVINVINVINVINVINVINVINV")
yaw = adj/opp
if adj < 0 and opp < 0 then
print("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA!!!!!!")
yaw = yaw + math.pi/2
end
if adj > 0 and opp > 0 then
print("++++++++++++++++++++++++++++++!!!!!!")
yaw = yaw + math.pi + math.pi/2
end
if yaw < 0 then
print("BBBBBBBBBBBBBBBBBBBBBBBBBBBBBB!!!!!!")
if opp > 0 then
print("OPP>0 OPP>0 OPP>0 OPP>0 OPP>0 OPP>0 OPP>0 OPP>0 OPP>0")
yaw = math.pi + math.pi/2 + yaw
else
print("OPP<0 OPP<0 OPP<0 OPP<0 OPP<0 OPP<0 OPP<0 OPP<0 OPP<0 ")
yaw = math.pi/2 + yaw
end
end
else
print("NORMNORMNORMNORMNORMNORMNORMNORMNORM!!!!!!")
if adj < 0 and opp < 0 then
print("AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA!!!!!!")
yaw = yaw - math.pi
end
if adj > 0 and opp > 0 then
print("++++++++++++++++++++++++++++++!!!!!!")
yaw = math.pi*2 - yaw
end
if yaw < 0 then
print("BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB!!!!!!")
if opp > 0 then
print("OPP>0 OPP>0 OPP>0 OPP>0 OPP>0 OPP>0 OPP>0 OPP>0 OPP>0")
yaw = math.pi - yaw
else
print("OPP<0 OPP<0 OPP<0 OPP<0 OPP<0 OPP<0 OPP<0 OPP<0 OPP<0 ")
yaw = math.pi*2 - yaw
end
end
end
self.driver:set_look_yaw(yaw)
end
-- Update path
self.path[#self.path + 1] = {
pos = pos,
@ -115,6 +193,12 @@ function camera:on_step(dtime)
-- Modify yaw and pitch to match driver (player)
self.object:set_look_pitch(self.driver:get_look_pitch())
self.object:set_look_yaw(self.driver:get_look_yaw())
print("look pitch "..dump(self.driver:get_look_pitch()))
print("look vertical "..dump(self.driver:get_look_vertical()))
print("look yaw "..dump(self.driver:get_look_yaw()))
print("look horizontal "..dump(self.driver:get_look_horizontal()))
print("velocity "..dump(self.object:getvelocity()))
print("look dir "..dump(dir))
-- Get controls
local ctrl = self.driver:get_player_control()
@ -147,7 +231,8 @@ function camera:on_step(dtime)
end
-- Set updated velocity
self.object:setvelocity(vector.multiply(self.driver:get_look_dir(), speed))
--self.object:setvelocity(vector.multiply(self.driver:get_look_dir(), speed))
self.object:setvelocity(vector.multiply(player_look_dir, speed))
elseif self.mode == 1 then -- elseif playback mode
-- Get controls
local ctrl = self.driver:get_player_control()
@ -225,7 +310,24 @@ minetest.register_chatcommand("camera", {
end
elseif param1 == "list" then -- elseif list, list recordings
return true, "Recordings: "..get_recordings(name)
elseif param1 == "look_target" then
if param2 and param2 ~= "" then
if param2 == "nil" then
target_look_position = nil
return true, "Target look deleted"
end
local coord = string.split(param2, ",")
if #coord == 3 then
target_look_position = {x=tonumber(coord[1]), y=tonumber(coord[2]), z=tonumber(coord[3])}
return true, "Target look fixed"
else
return false, "Wrong formated coords (/camera look_target <x,y,z>)"
end
else
return false, "Missing coords (/camera look_target <x,y,z>)"
end
else -- else, begin recording
player_look_dir = player:get_look_dir()
local object = minetest.add_entity(player:getpos(), "camera:camera")
object:get_luaentity():init(player, 0)
object:setyaw(player:get_look_yaw())